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2 sinx 1
2 sinx 1 pictures 5
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2 sinx 1
cosx/1+sinxu003dcotx/2)-1/cot(x/2)+1
2cos 2 sinx 1 0
2sinx 2 sinx 1
tanx 2 sinx 1 cosx
sqrt 2 sinx-1u003d0
2sinx 2 sinx 1 0
2 sinx 1 cos2x
2+sin x/1+y dy/dx
2 sinx 1 cosx
2 sinx 1
